Finding the Fourth Proportional to 109,478.90, 151,080.81 and 59,177.90

Step by Step Solution

1. Step 1: Write the proportion equation
   109,478.90 : 151,080.81 = 59,177.90 : x
2. Step 2: Convert to fraction form
   109,478.90/151,080.81 = 59,177.90/x
3. Step 3: Cross multiply
   109,478.90x = 151,080.81 × 59,177.90
4. Step 4: Simplify right side
   109,478.90x = 8,940,644,499.55
5. Step 5: Solve for x
   x = 8,940,644,499.55/109,478.90
6. Step 6: Final answer
   x = 81,665.46